Recent questions tagged 96

Which of the following in true for Golden rice ?

asked Jul 8, 2019 by pady_1

1 answer

If the equilibrium constant for the reaction $2AB \rightleftharpoons A_2 + B_2$ is 49; what is the value of equilibrium constant for $AB \rightleftharpoons \frac{1}{2}A_2 +\frac{1}{2}B_2$ ?

asked Dec 19, 2018 by pady_1

0 answers

Which of the following compounds undergo aldol condensation ?

asked Dec 19, 2018 by pady_1

0 answers

Which of the following converts acetone to acetone oxime ?

asked Dec 19, 2018 by pady_1

1 answer

One ampere of current is passed for 9650 seconds through molten $AlCl_3$. What is the weight in grams of $Al$ deosited at cathode ? (atomic weight of Al = 27)

asked Dec 11, 2018 by pady_1

0 answers

Solubility of $Ca(OH)_2$ is $s \; mol\; L^{-1}$. The solubility product $(K_{sp})$ under the same condition is :

asked Dec 11, 2018 by pady_1

0 answers

The pair of species having identical shapes for molecules of both species is :

asked Dec 11, 2018 by pady_1

0 answers

Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area $A = 10 cm^2$ and length = 20 cm. If one of the solenoids has 300 turns and the other 400 turns, their mutual inductance is ($\mu_0= 4\pi \times 10^{-7} Tm A^{-1}$)

asked Nov 29, 2018 by pady_1

0 answers

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass = $60 \; g\; mol^{-1}$) in the same solvent. If the densities of both the solutions are assumed to be equal to $1.0\; g\; cm^{-3}$, molar mass of the substance will be :

asked Nov 29, 2018 by pady_1

0 answers

The alkene formed as a major product in the above elimination reaction is :

asked Nov 13, 2018 by pady_1

0 answers

The exothermic formation of $ClF_3$ is represented by the equation : $Cl_2 (g) + 3F_2 (g) \leftrightharpoons 2 ClF_3 (g); \Delta Hr = -329 kJ$. Which of the following will increase the quantity of $ClF_3$ in an equilibrium mixture of $Cl_2, F_2 $ and $ClF_3$?

asked Nov 5, 2018 by pady_1

0 answers

For which of the following parameters the structural isomers $C_2H_5OH$ and $CH_3OCH_3$ would be expected to have the same values ? (Assume ideal behaviour)

asked Nov 5, 2018 by pady_1

1 answer

Which of the following is a secondary pollutant ?

asked Aug 21, 2018 by pady_1

1 answer

Which of the following is correctly matched for the product produced by them ?

asked Aug 21, 2018 by pady_1

1 answer

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom

asked Aug 21, 2018 by pady_1

1 answer

Which of the following diseases is caused by a protozoan?

asked Aug 21, 2018 by pady_1

1 answer

Which of the following is responsible for peat formation?

asked Aug 20, 2018 by pady_1

1 answer

Read the following statements (A– E) and answer the question which follows them : (A) In liverworts, mosses and ferns gametophytes are free-living (B) Gymnosperms and some ferns are heterosporous (C) Sexual reproduction in Fucus, Volvox and Albugo is oogameous (D) The sporophytes in liverworts is more elaborate than that in mosses (E) Both, Pinus and Marchentia are dioecious How many of the above statements are correct ?

asked Aug 20, 2018 by pady_1

1 answer

Predict the products in the given reaction OPTIONS :

asked Aug 20, 2018 by pady_1

1 answer

The correct IUPAC name of the compound

asked Aug 16, 2018 by pady_1

1 answer

Which one is most reactive towards $S_N1$ reaction?

asked Jul 26, 2018 by pady_1

1 answer

Trichloroacetaldehyde,$ CCl_3 CHO$ reacts with chlorobenzene in presence of sulphuric acid and produces -

asked Jul 26, 2018 by pady_1

1 answer

Number of moles of $MnO{_4}{^-}$ required to oxidize one mole of ferrous oxalate completely in acidic medium will be :

asked Jul 26, 2018 by pady_1

1 answer

$CH_3-CHCl-CH_2-CH_3$ has a chiral centre, which one of the following represents its R configurations :

asked Jul 26, 2018 by pady_1

1 answer

Which of the following is not a correct statement:-

asked Jul 25, 2018 by pady_1

2 answers

A nuclide of an alkaline earth metal undergoes radioactive decay by emission of the $\alpha$-particles is succession. The group of the periodic table to which the resulting daughter element would belong is :-

asked Jul 24, 2018 by pady_1

1 answer

Using anhydrous $AlCl_3$ as catalyst, which one of the following reactions produces ethylbenzene (PhEt) :-

asked Jul 24, 2018 by pady_1

1 answer

A and B in the following reactions are :

asked Jul 24, 2018 by pady_1

0 answers

The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then emprirical formula is :

asked Jul 23, 2018 by pady_1

1 answer

Zn convert it's melted state to its solid state, it has HCP structure, then find out nearest no. of nearest atom : -

asked Jul 20, 2018 by pady_1

1 answer

From the colligative properties of solution which one is the best method for the determination of mol. wt of proteins & polymers :

asked Jul 20, 2018 by pady_1

1 answer

The edge length of face centred unit cubic cells is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is :

asked Jun 15, 2018 by pady_1

1 answer

Six friends P, Q, R, S, T and U are sitting around a circular table. P is sitting between Q and T, S is sitting between R and U. If Q is sitting on right of U, who is sitting between S and Q ?

asked Dec 31, 2015 by pady_1

1 answer

The Lakers scored the following numbers of goals in their last twenty matches: 3, 0, 1, 5, 4, 3, 2, 6, 4, 2, 3, 3, 0, 7, 1, 1, 2, 3, 4, 3 Which number had the highest frequency?

asked Dec 31, 2015 by pady_1

1 answer

Find the number of bricks to be laid in a square path of side 25 cm, if the side of each brick is 5 cm.

asked Dec 31, 2015 by pady_1

1 answer

Tom and Bob have a total of 49 toys. If Bob has 5 more toys than Tom, how many toys does each one have?

asked Dec 31, 2015 by pady_1

1 answer

Jack earns \$ 100 on the first day, \$60 on the second day, \$ 150 on the third day, \$ 80 on the fourth day and $ 90 on the fifth day. What was his average earnings?

asked Dec 31, 2015 by pady_1

1 answer

Ask Questions, Get Answers

Which of the following in true for Golden rice ?

If the equilibrium constant for the reaction $2AB \rightleftharpoons A_2 + B_2$ is 49; what is the value of equilibrium constant for $AB \rightleftharpoons \frac{1}{2}A_2 +\frac{1}{2}B_2$ ?

Which of the following compounds undergo aldol condensation ?

Which of the following converts acetone to acetone oxime ?

One ampere of current is passed for 9650 seconds through molten $AlCl_3$. What is the weight in grams of $Al$ deosited at cathode ? (atomic weight of Al = 27)

Solubility of $Ca(OH)_2$ is $s \; mol\; L^{-1}$. The solubility product $(K_{sp})$ under the same condition is :

The pair of species having identical shapes for molecules of both species is :

Two coaxial solenoids are made by winding thin insulated wire over a pipe of cross sectional area $A = 10 cm^2$ and length = 20 cm. If one of the solenoids has 300 turns and the other 400 turns, their mutual inductance is ($\mu_0= 4\pi \times 10^{-7} Tm A^{-1}$)

A 5.25% solution of a substance is isotonic with a 1.5% solution of urea (molar mass = $60 \; g\; mol^{-1}$) in the same solvent. If the densities of both the solutions are assumed to be equal to $1.0\; g\; cm^{-3}$, molar mass of the substance will be :

<br> The alkene formed as a major product in the above elimination reaction is :

The exothermic formation of $ClF_3$ is represented by the equation : <br> $Cl_2 (g) + 3F_2 (g) \leftrightharpoons 2 ClF_3 (g); \Delta Hr = -329 kJ$. <br> Which of the following will increase the quantity of $ClF_3$ in an equilibrium mixture of $Cl_2, F_2 $ and $ClF_3$?

For which of the following parameters the structural isomers $C_2H_5OH$ and $CH_3OCH_3$ would be expected to have the same values ? <br> (Assume ideal behaviour)

Which of the following is a secondary pollutant ?

Which of the following is correctly matched for the product produced by them ?

Chrysophytes, Euglenoids, Dinoflagellates and Slime moulds are included in the kingdom

Which of the following diseases is caused by a protozoan?

Which of the following is responsible for peat formation?

Predict the products in the given reaction <br> <br> OPTIONS : <br>

The correct IUPAC name of the compound <br>

Which one is most reactive towards $S_N1$ reaction?

Trichloroacetaldehyde,$ CCl_3 CHO$ reacts with chlorobenzene in presence of sulphuric acid and produces -

Number of moles of $MnO{_4}{^-}$ required to oxidize one mole of ferrous oxalate completely in acidic medium will be :

$CH_3-CHCl-CH_2-CH_3$ has a chiral centre, which one of the following represents its R configurations :

Which of the following is not a correct statement:-

A nuclide of an alkaline earth metal undergoes radioactive decay by emission of the $\alpha$-particles is succession. The group of the periodic table to which the resulting daughter element would belong is :-

Using anhydrous $AlCl_3$ as catalyst, which one of the following reactions produces ethylbenzene (PhEt) :-

A and B in the following reactions are : <br>

The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then emprirical formula is :

Zn convert it's melted state to its solid state, it has HCP structure, then find out nearest no. of nearest atom : -

From the colligative properties of solution which one is the best method for the determination of mol. wt of proteins & polymers :

The edge length of face centred unit cubic cells is 508 pm. If the radius of the cation is 110 pm, the radius of the anion is :

Six friends P, Q, R, S, T and U are sitting around a circular table. P is sitting between Q and T, S is sitting between R and U. If Q is sitting on right of U, who is sitting between S and Q ?

The Lakers scored the following numbers of goals in their last twenty matches: 3, 0, 1, 5, 4, 3, 2, 6, 4, 2, 3, 3, 0, 7, 1, 1, 2, 3, 4, 3 Which number had the highest frequency?

Find the number of bricks to be laid in a square path of side 25 cm, if the side of each brick is 5 cm.

Tom and Bob have a total of 49 toys. If Bob has 5 more toys than Tom, how many toys does each one have?

Jack earns \$ 100 on the first day, \$60 on the second day, \$ 150 on the third day, \$ 80 on the fourth day and $ 90 on the fifth day. What was his average earnings?